Computational coupled large‐deformation periporomechanics for dynamic failure and fracturing in variably saturated porous media

Convergent mass conservative schemes for flow and reactive solute transport in variably saturated porous media

PoreFlow: A complex pore-network model for simulation of reactive transport in variably saturated porous media

This study introduces PoreFlow, a pore-network modeling tool capable of simulating fluid flow and multi-component reactive and adsorptive transport under saturated and variably saturated conditions. PoreFlow includes a variety of modules, such as: pore network generator, drainage simulator, calculation of pressure and velocity distributions, and modeling of reactive solute transport accounting ...

Three-dimensional analysis of variably-saturated flow and solute transport in discretely-fractured porous media

A discrete fracture, saturated-unsaturated numerical model is developed where the porous matrix is represented in three dimensions and fractures are represented by two-dimensional planes. This allows a fully three-dimensional description of the fracture network connectivity. Solute advection and diffusion in the porous matrix are also directly accounted for. The variably-saturated flow equation...

Eecient and Robust Numerical Modeling of Variably Saturated Ow in Layered Porous Media

We extend our recent work on higher-order time integration of Richards' equation to layered heterogeneous porous media, using a diierential-algebraic-equation-based method of lines (DAE/MOL) approach. We show that the DAE/MOL approach is robust and eecient compared to standard low-order time integration methods for heterogeneous media. We also show the advantage of using an integral representat...

Transport of methane and noble gases during gas push-pull tests in variably saturated porous media.

The gas push-pull test (GPPT) is a single-well gas-tracer method to quantify in situ rates of CH4 oxidation in soils. To improve the design and interpretation of GPPT field experiments, gas component transport during GPPTs was examined in abiotic porous media over a range of water saturations (0.0 < or = Sw < or = 0.61). A series of GPPTs using He, Ne, and Ar as tracers for CH4 were performed a...